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i <br /> kEntech Analytical Labs,Inc 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br />' QUALITY CONTROL RESULTS SUMMARY <br /> METHOD 1CP <br /> rQC Batch# SM980710 Date Analyzed 07/17/98 <br /> Matrix Solid Extraction Method EPA 3050 <br />' Units m&RSpiked Sample E13177 <br /> ARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> rn m rn m %R m %R RPD %R <br />' <br /> :Antimony ' 6010 !I <0 50 ' 50 ' na : na ' na na 1 na ' na ' 250 1I 63-112 ' <br /> I I I I I :I I I I I <br /> IArsemc 1 6010 1 <0 50 1 50 1 23 1 47 1 89 1 46 1 86 1 25 1 250 1 55-117 1 <br /> :B: <0 50 I 50 na I na 1 na 1 na i na 1 na i 25 0 i 59-120 r <br /> arium 1 6010 1 I I 1 1 I r 1 <br />' <br /> :Beryllium ll ' 6010 : <0 50 ' 50 ' na : na ' na ' na ' na ' na ' 250 ' 66-114 ' <br /> I I 1 I I 1 I I I I I I I <br /> :Cadmium 1 6010 1 <0 50 1 50 1 00 1 46 1 93 1 45 1 91 1 24 1 250 1 70-104 1 <br /> I 1 I I I ! I I I I I I I <br /> iChlromium 1 6010 1 <0 50 1 50 1 45 , 55 1 101 , 52 1 94 1 66 1 250 1 60-122 r <br /> Cobalt 1 6010 ' I I [ I I I I I I I <br /> <0 50 50 na na na na na na 25 0 60-114 <br /> I I I I I r I I I I I I I <br /> :Copper 1 6010 <0 50 1 50 1 na 1 na 1 na 1 na 1 na 1 na 1 250 48-131 1 <br /> ! I I 1 [ I I I I I I I <br /> (Lead I 6010 1 <0 50 1 50 I 2 3 r 49 1 94 k 48 1 91 1 26 1 250 I 60-110 1 <br /> 1 I I I I I I I I I 1 1 I <br /> r :Molybdenum I 6010 1 <0 50 I 50 I na r na 1 na 1 na i na i na I 25 0 i 48-119 � <br /> INickel 1 6010 1 <0 50 50 1 2 6 1 56 106 1 52 1 99 ' 65 1 250 1 54-124 <br /> 1 I I I I I I I I I I I I <br /> :Selenium I 6010 1 <0 50 1 50 I na I na 1 na k na 1 na I na 1 250 1 52-113 1 <br /> 11 <0 50 I 50 I na I na na k na I nd I na 1 250 56-117 <br /> Silver 1 6010 � r 1 1 I I I I I I I <br /> liallium ' 6010 ' <0 50 1 50 1 na 1 na 1 na 1 na 1 na ' na ' 250 1 60-112 1 <br /> :Vanadium i 6010 1 --050 I 50 i na k na I na i na I na i na i 250 i 51-130 I <br /> r :2;mc I 6010 -050 1 50 1 26 t ° 90 I 128 ' 81 1 109 1 15 7 1 25 0 60-118 1 l I I I I i i i I <br /> I I I I I 1 I I I I k I I <br /> 1 1 1 1 I 3 I I I I I <br /> Note LCS and I C SD rEsults reported for the follow inq Parameters <br /> None <br /> r <br />' 4cceptable LCS and LCSD results are reported when matriT interferences caust 1L15 and A4 4D results to fall outside <br /> establtshed QC limits <br /> rDefinition of Terms <br /> na Not Analyzed in QC batch <br /> MB Method Blank <br /> SA Spike Added <br /> SR Sample Result <br /> SP Spike Result <br />' SP(%R) Spike%Recovery <br /> SPD Spike Duplicate Result <br /> SPD(%R) Spike Duplicate%Recovery <br />